Back in 2020 my period was really irregular but it synced back up and was back to having a period every month. However my period is nearly 50 days late. I did a cheap test my friend had when it was a week late. It was negative but I was half a sleep when I peed on it and the strip was only on a small part and I was holding it upside down so I don’t know how much pee was used. Has anyone else been this late after their period had synced up again